40m QIL Cryo_Lab CTN SUS_Lab TCS_Lab OMC_Lab CRIME_Lab FEA ENG_Labs OptContFac Mariner WBEEShop
  PSL  Not logged in ELOG logo
Entry  Mon Sep 12 01:21:14 2011, tara, DailyProgress, BEAT, beat layout beat_2011_09_12.png
    Reply  Tue Sep 13 20:54:11 2011, tara, DailyProgress, BEAT, beat layout 
       Reply  Wed Sep 14 19:17:19 2011, frank, paul, tara, DailyProgress, BEAT, beat layout beat_2011_09_14.pngSnapshot_2011-09-14_19-39-37.png
          Reply  Tue Sep 20 00:12:46 2011, rana, DailyProgress, BEAT, seismic noise coupling 
             Reply  Tue Sep 20 01:49:44 2011, Frank, DailyProgress, BEAT, seismic noise coupling 
                Reply  Wed Sep 21 01:39:11 2011, tara, DailyProgress, BEAT, seismic noise coupling beat_2011_09_20_m.pngbeat_2011_09_20_m.fig
Message ID: 687     Entry time: Tue Sep 20 00:12:46 2011     In reply to: 678     Reply to this: 688
Author: rana 
Type: DailyProgress 
Category: BEAT 
Subject: seismic noise coupling 

By taking the passive transfer function between a vertical seismometer on the table and the individual cavity signals, we should be able to see which direction to move the cavity supports so as to minimize the seismic coupling.

Our first iteration probably will have a sign error, but by making a few iterations we ought to be able to home in on a better support. Also, we should compare the theoretical estimate with the measured coupling in units of strain/(m/s^2).

ELOG V3.1.3-